In the Qur'an, which was
revealed 14 centuries ago at a time when the science of astronomy
was still primitive, the expansion of the universe was described
like this:

"And it is We who have constructed
the heaven with might, and verily, it is We who are steadily expanding
it."
(The Qur'an, 51:47)

The word "heaven", as stated in this verse,
is used in various places in the Qur'an with the meaning of space
and universe. Here again, the word is used with this meaning. In
other words, in the Qur'an it is revealed that the universe "expands".
And this is the very conclusion that science has reached today.

Georges Lemaitre

Until the dawn of the 20th century, the only view prevailing
in the world of science was that "the universe has a constant
nature and it has existed since infinite time". The research,
observations, and calculations carried out by means of modern technology,
however, have revealed that the universe in fact had a beginning,
and that it constantly "expands".

At the beginning of the 20th century, the Russian physicist
Alexander Friedmann and the Belgian cosmologist Georges Lemaitre
theoretically calculated that the universe is in constant motion
and that it is expanding.

This fact was proved also by observational data in 1929.
While observing the sky with a telescope, Edwin Hubble, the American
astronomer, discovered that the stars and galaxies were constantly
moving away from each other. A universe where everything constantly
moves away from everything else implied a constantly expanding
universe. The observations carried out in the following years verified
that the universe is constantly expanding. This fact was explained
in the Qur'an when that was still unknown to anyone. This is because
the Qur'an is the word of God, the Creator, and the Ruler of the
entire universe.

From the moment of the big bang, the
universe has been constantly expanding at a great speed. Scientists
compare the expanding universe to the surface of a balloon that
is inflated.